UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS

Guest
2024-11-22 1:31
 HOME     CONFERENCES     SEARCH            LOGIN     NEW USER     IMAGES   


Conference: Bucharest University Faculty of Physics 2003 Meeting


Section: Atmosphere and Earth Science; Environment Protection


Title:
Intercomparison of Dispersion Models Used for Study of PM10 Polutants


Authors:
Cristina Balaceanu, Sabina Stefan, D. Eseanu


Affiliation:
University of Bucharest, Faculty of Physics,

P.O.Box MG-11, Bucharest, ROMANIA

E-mail: cristinabalaceanu@yahoo.com


E-mail


Keywords:


Abstract:
Air quality modeling is an essential tool for most air pollution studies. The air quality models are the means whereby pollutant emissions can be related to atmospheric pollutant concentrations. The uncertainties in assessment of air quality are related to both the quality of measured values of pollutant concentrations in local network and the input data for the models. The better estimation of air quality requests to combine the results of measurements with the results obtained by modeling. Consequently, to validate this method the two types of results were compared for the two very used models in pollution studies:Climatological and OML . The dispersion models are Gaussian-type models. The OML (Operationelle Meteorologiske Luftkvalibets-modeller) improves the methods for the simulation of dispersion processes in terms of certain physical parameters, with importance to boundary layer turbulence. Intercomparison study was applied for nine sites in Ploiesti City, where the concentrations of pollutants were measured. The concentrations of the PM10 (particulate matters with diameters more large than 10 um) were studied. The results shown large differences between measured and modeled values of PM10 concentrations, by comparison to results of gaseous pollutants (Mocioaca, G.. M., Serban, R. and Sivertsen, B. (2001)). These results emphasized that it is necessary to improve the methods of measurement of this type of pollutant and to be carefully with the input meteorological data for models. References Mocioaca, G..M., Serban, R. and Sivertsen, B. (2001) Passive sampling in pilot zones and agglomerations, July 2001. Assistance to Romania on transposition and implementation of the EU ambient air quality directives. Bucharest (IDAQ Report no. 011E)/Kjeller (NILU OR 63/2001). Sivertsen, B. (2001) AirQUIS, Presented at the AirQUIS Workshop, Bucharest, 25 October 2001. Kjeller (NILU F 9/2001).